/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/GroupTopology.h
Call EdgeFunc for each boundary edge of the given Group (no order defined). Templated so it works with both lambdas or TFunctions. Defined here to avoid dll explicit instantiation woes.
template<typename FuncTakingFGroupEdgeAndInt> void ForGroupEdges ( int GroupID, const FuncTakingFGroupEdgeAndInt & EdgeFunc ) const